Руководство По Проектированию для Cisco Cisco Nexus 5010 Switch

 

Design Guide 

 

© 2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. 

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This collection of white papers provides guidelines for designing and deploying the access and 
aggregation layers in the data center using Cisco Nexus

®

 products. 

This document covers the following topics: 

● 

Data Center Design with Cisco Nexus Switches and Virtual PortChannel: Overview (Chapter 1, this document) 

● 

Cisco NX-OS Software Command-Line Interface Primer (Chapter 2) 

● 

Cisco NX-OS Software Virtual  PortChannel: Fundamental Concepts (Chapter 3) 

● 

Spanning Tree Design Guidelines for Cisco NX-OS Software and Virtual PortChannels (Chapter 4) 

● 

Data Center Aggregation Layer Design and Configuration with Cisco Nexus Switches and Virtual  
PortChannel (Chapter 5) 

● 

Data Center Access Design with Cisco Nexus 5000 Series Switches and 2000 Series Fabric Extenders and 
Virtual PortChannels (Chapter 6) 

● 

10 Gigabit Ethernet Connectivity with Microsoft Windows Servers (Chapter 7) 

● 

Data Center Design with VMware ESX 4.0 and Cisco Nexus 5000 and 1000V Series Switches and 2000 
Series Fabric Extenders (Chapter 8) 

This document is a natural extension of Data Center Design—IP Network Infrastructure published at the following 
link: 

. 

This document doesn’t cover the integration of load balancers and firewalls in the data center, which is described in 
the following publications: 

 and 

. 

Most data centers today have been built using well-known Cisco

®

 multilayer topology with core, aggregation, and 

access layers. Typical data centers use the concept of the pod, which is a building block for the access layer of the 
data center. A pod may be made of several racks or an entire row of machines. 

Most data centers are the result of a consolidation process that was facilitated by the availability of bandwidth to 
connect remote locations to centralized data centers. During the consolidation process, enterprises and service 
providers simplified the network and the storage infrastructure by adopting topologies that take advantage of virtual 
local area networks (VLANs) and the virtual storage area network (VSAN) technology. 

The same process of simplification is currently happening on the computing nodes. It involves both physical 
consolidation by means of blade enclosures and server virtualization at the operating system (OS) level, which makes 
it possible to run multiple instances of various operating systems on the same physical machine. 

Most existing data centers are deployed according to two design philosophies: 

● 

This topology consists of large, director-class switching devices at the end of 

each row of servers. End-of-the-row topologies require significant cabling bulk to be carried from all server 
racks to the network rack.  The main advantage of end-of-the-row topologies is the fact that fewer 
configuration points (switches) control a large number of server ports.